Publications of the Astronomical Society of the Pacific, Volumes 3-4Astronomical Society of the Pacific, 1891 |
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Page 18
... change in the correct appreciation of the angle terminating the shadow will alter the position of the end of the Ring A greatly . The illusion in regard to the prolongation of the principal division I explain by supposing the eye makes ...
... change in the correct appreciation of the angle terminating the shadow will alter the position of the end of the Ring A greatly . The illusion in regard to the prolongation of the principal division I explain by supposing the eye makes ...
Page 19
... Changes in the Rings of Saturn , Astronomical Journal , vol . 8 , page 180 . The Square - shouldered Aspect of Saturn , Publications A. S. P. , July 12 , 1890 . First Observations of Saturn with the 36 - inch Equatorial , Sidereal ...
... Changes in the Rings of Saturn , Astronomical Journal , vol . 8 , page 180 . The Square - shouldered Aspect of Saturn , Publications A. S. P. , July 12 , 1890 . First Observations of Saturn with the 36 - inch Equatorial , Sidereal ...
Page 23
... change was detected in the weight of a platinum wire between the temperatures of 20 ° C . , and bright red heat , say 800 ° C . , the limit of certain detection being 0.35 % , or one part in 300 . So far as our present limited knowledge ...
... change was detected in the weight of a platinum wire between the temperatures of 20 ° C . , and bright red heat , say 800 ° C . , the limit of certain detection being 0.35 % , or one part in 300 . So far as our present limited knowledge ...
Page 24
... change was ever noticed within five seconds of closing the lamp circuit . After that time a slight indication of ... change in the above order of events could be detected with the current through the lamp in the opposite direction ...
... change was ever noticed within five seconds of closing the lamp circuit . After that time a slight indication of ... change in the above order of events could be detected with the current through the lamp in the opposite direction ...
Page 25
... change representing loss of weight in the lamp pan would generally be detected within two seconds . This appeared to ... changes in balance observed were due in the first stage to a steady electro - magnetic repulsion be- tween mercury ...
... change representing loss of weight in the lamp pan would generally be detected within two seconds . This appeared to ... changes in balance observed were due in the first stage to a steady electro - magnetic repulsion be- tween mercury ...
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Common terms and phrases
angle aperture appears Astronomical Astronomical Society atmosphere August axis bright BURCKHALTER California Street Catalogue Chicago Section chronometer Comet Committee copies corona coronal pole crater dark diameter Directors disc distance drawings E. E. BARNARD eclipse elected elongated equator equatorial exposure eye-piece HOLDEN inches instrument J. M. SCHAEBERLE July Jupiter Jupiter's KEELER latitude Library Lick Observatory light limb London longitude lunar magnitude means meeting meridian meridian circle meteors minutes Miss CLERKE MOLERA Moon Mount Hamilton nebula negatives object observations obtained Pacific parallax Paris photographic PIERSON planet plates polar position present Prof Professor WEINEK proper motions Publications radiant rays reference book right ascension ring San Francisco satellite SCHMIDT Secretary seen shadow solar spectra spectrum spot stars stellar sun-spots sun's telescope temperature tion TRANSIT OF MERCURY U. S. Naval Observatory University visible W. H. S. MONCK W. W. CAMPBELL Washington Zodiacal light